Day 4: Measure Before You Decide Anything

Before you pick a single piece, you measure. Day 4 of the room challenge is how to measure a dining room the way I do it for clients, once and properly, so you don’t end up with the wrong table, the wrong rug or the wrong light.

Jill Seidner's Dining Room Clearances guide: the space to leave around a dining table so chairs pull out, people can walk behind seated guests, and doors and sideboards still open.
Day 4 guide: my dining room clearance numbers. These are the spaces your measurements have to leave room for.

YOUR DESIGN GUIDE | ROOM CHALLENGE | DAY 4

Welcome to Day 4.

You’ve looked at your room, chosen your direction in Day 2 and written down how you really use the space in Day 3.

Now, before we pick a single piece, we measure.

I know. It’s the least exciting day of the month. It’s also the one that saves you the most money. Nearly every returned dining table I’ve seen was a measuring problem, not a style problem. So today we do it the way I do it for clients, once and properly.

Today’s guides: my clearance numbers (above), plus my table-size-by-seats chart, rug and light sizing, and my measuring checklist, with a printable checklist and plan sheet in the full post.

Step 1: Gather your tools to measure your dining room

You need three things:

  • A 25-foot tape measure
  • Graph paper (one square = 6 inches)
  • A pencil, not a pen

Write every number in inches, not feet and inches. It sounds fussy, but it’s how you avoid the “was that 7’4″ or 74 inches?” mistake later.

Start at the floor and measure wall to wall in both directions. Write those two numbers in big letters at the top of the page.

Those two numbers matter. But they’re not the ones that usually ruin a plan.

In this guide, you’ll get

  • My dining room clearance guide: the space chairs, walkways and doors really need
  • My table size by seats chart, so you know what your room can hold
  • My rug and light sizing guide for the space over and under the table
  • My Designer’s Checklist: the 6 measurements I take in every dining room
  • How to draw door swings and mark outlets, vents and the ceiling light box
  • A printable Day 4 checklist plus a graph-paper plan sheet to download

The rest of Day 4 is for paid members. Read the full post on Substack.


From my shop

Want the layouts, dimensions and lighting for every room in your home, dining space included? It’s all in my 151-page Complete Home Design Guide.

Cover of The Complete Home Design Guide by Jill Seidner Interior Design.
The Complete Home Design Guide: layouts, dimensions and lighting for every room.

Want help with your own room?

If you’d love a designer’s eye on your own measurements and layout, book an online design consultation and we’ll talk through your room together.

Online design consultation with Jill Seidner Interior Design.
An online design consultation for your own room.

How to measure a dining room: FAQ

What do I need to measure my dining room?
A 25-foot tape measure, graph paper (one square = 6 inches) and a pencil, not a pen.

Should I measure in feet or inches?
Inches. Write every number in inches so you never mix up 7’4″ and 74 inches later.

Where do I start?
At the floor. Measure wall to wall in both directions and write those two numbers in big letters at the top of the page.

Is the room size the only number that matters?
No. Those two numbers matter, but they’re not the ones that usually ruin a plan. The full Day 4 lesson covers clearances, table size by seats, rug and light sizing and the 6 measurements I take in every dining room.


Read more on Substack: follow along with the room challenge, or subscribe for all the perks, including the full Day 4 guides and checklist.

Originally published on Your Design Guide. Read the full post on Substack: Day 4: Measure Before You Decide Anything

The Room Numbers I Use on Every Project (Save This Before You Buy Anything)

YOUR DESIGN GUIDE | THE ROOM NUMBERS

Picture a living room that’s finished. Not expensive. Finished.

You walk in and nothing stops you. The path from the door to the sofa is wide enough that you never turn your shoulders. The coffee table sits close enough to set a cup down without leaning, far enough that nobody bangs a shin. The rug catches the front legs of every chair, so the seating reads as one group instead of four pieces floating. The art hangs at eye level. The curtains start high and fall wide, so the window looks bigger than it is.

None of that is taste. It’s numbers. These are the room measurements I check on every interior design project, before I buy, move or hang a single thing.

Jill Seidner's Your Design Guide graphic How to Measure the Walkways in a Small Room: a living room with a tape measure on the floor and six spacing numbers for walkways, coffee tables, beds, dressers and dining chairs.
The walkway numbers I check in every small room, from my Day 2 guide. The full room-by-room set is in the post on Substack.

This week I shared the walkway measurements I use in every small room (they started in my Day 2 guide to measuring the walkways), and that little note brought new readers here. So here is the full set: the numbers I check in every room.

Grab a tape measure and a notes app. This is the post to keep.

Room measurements every room needs: what’s in the full guide

The full post is for paid subscribers on Substack. In this guide, you’ll get:

  • The spacing numbers for every main room, in one place
  • The rug, table and lighting sizes that stop expensive mistakes
  • A 20-minute walk-through to find the one number that’s off in your room

This is the free preview. Every room’s numbers and the 20-minute walk-through are in the full post on Substack.


Every number, room by room

The spacing, rug and lighting numbers I design with all live in one place: my Complete Home Design Guide, 151 pages of layouts, dimensions, color, lighting and styling, room by room. Keep it open while you measure.


Want help with your own room?

Stuck on your own room? Book a design consultation and we’ll go through your space together online: what to measure, what to move, and which piece is the wrong size before you buy anything else.


Room measurements: FAQ

Why do room measurements matter more than style?
Because a room that feels finished is usually a room where the spacing is right: a clear walkway, a coffee table at a comfortable reach, a rug that holds the seating together, art at eye level. Get the numbers right and the style has somewhere to land.

How wide should a walkway be?
For the main path through a room, I plan 30 to 36 inches. Under 30 inches feels tight, though in a small space 30 inches is fine. The rest of my small-room walkway numbers are in the graphic above.

How far should the coffee table be from the sofa?
14 to 18 inches. Closer and you hit your shins; farther and you can’t reach your coffee.

Where are the rest of the numbers?
In the full post on Substack, for paid subscribers: the spacing numbers for every main room, the rug, table and lighting sizes, and the 20-minute walk-through.


More from Your Design Guide:


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Originally published on Your Design Guide. Read the full post and the comments on Substack: The Room Numbers I Use on Every Project